Hey Ask,
first of all, thank you for the purchase!
The theme uses slugs of the respective types as filter attributes; please try editing your types so that the slugs are in latin characters (this is also recommended from usability point of view, as the type archive URLs are generated based on the sugs as well). You can edit the type slugs in the “Portfolio -> Types” section of the admin panel. Please let me know if this helps!
Sincerely,
Andrii / Satori Studio